It's not a cure but it will definitely help kids with suboptimal executive function.
My primary school had a run club at the beginning of the day we'd hit laps of the school between roll call and 1st session, iirc we had 10 minutes you had to do at least one lap, you had to have good pace for two to be allowed a third, I don't recall many doing 4.
When I moved to highschool I didn't immediately notice why I was suddenly struggling to keep my shit together in class, the absence of moderate intensity cardio at the start of the day.
There's a few books and papers that back this up also